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Extreme mass-ratio inspirals (EMRIs) are one of the key sources of gravitational waves for space-based detectors such as LISA. However, their detection remains a major data analysis challenge due to the signals' complexity and length. We…

广义相对论与量子宇宙学 · 物理学 2026-01-28 Lorenzo Speri , Rodrigo Tenorio , Christian Chapman-Bird , Davide Gerosa

Space-based gravitational-wave detectors, such as the Laser Interferometer Space Antenna (LISA), provide a platform to probe new fundamental fields through extreme-mass-ratio inspirals (EMRIs), where a compact secondary object carrying…

广义相对论与量子宇宙学 · 物理学 2025-10-28 Tieguang Zi , Fu-Wen Shu

We investigate the orbital dynamics and gravitational wave signatures of neutral Extreme Mass Ratio Inspirals (EMRIs) in the spacetime of a Kerr black hole immersed in an asymptotically uniform magnetic field, described by the exact…

广义相对论与量子宇宙学 · 物理学 2026-04-01 Xiang-Qian Li , Hao-Peng Yan , Xiao-Jun Yue

We examine extreme mass ratio inspirals (EMRIs), where a charged compact object spirals into a supermassive black hole, in modified gravity theories with additional scalar or vector fields. Using the Teukolsky and generalized…

广义相对论与量子宇宙学 · 物理学 2024-11-25 Chao Zhang , Yungui Gong

Circumbinary accretion occurs throughout the universe, from the formation of stars and planets to the aftermath of major galactic mergers. We present an extensive investigation of circumbinary accretion disks, studying circular binaries…

星系天体物理 · 物理学 2023-10-13 Alexander J. Dittmann , Geoffrey Ryan

Given the absence of observations of black hole binaries, it is critical that the full range of accessible parameter space be explored in anticipation of future observation with gravitational wave detectors. To this end, we compile the…

广义相对论与量子宇宙学 · 物理学 2011-07-29 Janna Levin , Sean T. McWilliams , Hugo Contreras

This work elaborates on a detailed analysis of the novel characteristics of gravitational waves (GWs) generated by extreme mass ratio inspirals (EMRIs) within the framework of modified gravity (MOG). Our study begins by exploring the…

广义相对论与量子宇宙学 · 物理学 2024-08-20 Xiongying Qiao , Zhong-Wu Xia , Qiyuan Pan , Hong Guo , Wei-Liang Qian , Jiliang Jing

We describe a new class of resonances for extreme mass-ratio inspirals (EMRIs): tidal resonances, induced by the tidal field of nearby stars or stellar-mass black holes. A tidal resonance can be viewed as a general relativistic extension of…

广义相对论与量子宇宙学 · 物理学 2019-09-24 Béatrice Bonga , Huan Yang , Scott A. Hughes

Using black hole perturbation theory, we calculate the gravitational waves produced by test particles moving on bound geodesic orbits about rotating black holes. The orbits we consider are generic - simultaneously eccentric and inclined.…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Steve Drasco , Scott A. Hughes

Extreme-mass-ratio inspirals (EMRIs) are important targets for future space-borne gravitational-wave (GW) detectors, such as the Laser Interferometer Sapce Antenna (LISA). Recent works suggest that EMRI may reside in a population of newly…

高能天体物理现象 · 物理学 2022-05-18 Xian Chen , Yu Qiu , Shuo Li , F. K. Liu

Extreme mass-ratio inspirals detectable by the future Laser Interferometer Space Antenna provide a unique way to test general relativity and fundamental physics. Motivated by this possibility, here we study in detail the EMRI dynamics in…

广义相对论与量子宇宙学 · 物理学 2020-07-22 Gabriel Andres Piovano , Andrea Maselli , Paolo Pani

Extreme mass ratio inspirals (EMRIs) -- systems with a compact object orbiting a much more massive (e.g., galactic center) black hole -- are of interest both as a new probe of the environments of galactic nuclei, and their waveforms are a…

广义相对论与量子宇宙学 · 物理学 2022-11-09 Makana Silva , Christopher Hirata

Gas accretion of embedded stellar-mass black holes\,(sBHs) or stars in the accretion disk of active galactic nuclei\,(AGNs) will modify the mass distribution of these sBHs and stars, which will also affect the migration of the sBHs/stars.…

高能天体物理现象 · 物理学 2023-02-15 Mengye Wang , Yiqiu Ma , Qingwen Wu

Extreme mass ratio inspirals (EMRIs) take place when a stellar-mass black hole (BH) merges with a supermassive black hole (SMBH). The gravitational wave emission from such an event is expected to be detectable by the future Laser…

高能天体物理现象 · 物理学 2023-09-20 Smadar Naoz , Zoltan Haiman

We investigate extreme mass-ratio inspirals (EMRIs) around a rotating Hayward black hole to assess the detectability of signatures arising from quantum gravity.The quantum parameter $\alpha_0$, which encodes deviations from general…

广义相对论与量子宇宙学 · 物理学 2026-02-10 Dan Zhang , Chao Zhang , Qiyuan Pan , Guoyang Fu , Jian-Pin Wu

Observations of gravitational-wave signals emitted by compact binary inspirals provide unique insights into their properties, but their analysis requires accurate and efficient waveform models. Intermediate- and extreme-mass-ratio inspirals…

The inspirals of stellar-mass compact objects into supermassive black holes are some of the most important sources for LISA. Detection techniques based on fully coherent matched filtering have been shown to be computationally intractable.…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Linqing Wen , Jonathan R Gair

We compute gravitational waves from inspiraling stellar-mass compact objects on the equatorial plane of a massive spinning black hole (BH). Our inspiral orbits are computed by taking into account the adiabatic change of orbital parameters…

广义相对论与量子宇宙学 · 物理学 2020-09-10 Ryuichi Fujita , Masaru Shibata

An expected source of gravitational waves for future detectors in space are the inspirals of small compact objects into much more massive black holes. These sources have the potential to provide a wealth of information about astronomy and…

广义相对论与量子宇宙学 · 物理学 2015-06-03 Jonathan R Gair , Nicolas Yunes , Carl M Bender

We investigate the properties of stars born via gravitational instability in accretion discs around supermassive black holes (SMBHs) in active galactic nuclei (AGN), and how this varies with the SMBH mass, accretion rate, or viscosity. We…

星系天体物理 · 物理学 2023-04-13 Andrea Derdzinski , Lucio Mayer